Material screening device for thermistor production

Abstract

The utility model relates to the technical field of thermistor production, and discloses a material screening device for thermistor production, which comprises a base and a pickling container mounted at the upper end of the base, a partition plate is mounted in the center of the interior of the pickling container, and pickling cavities and processing cavities are arranged on the left side and the right side of the partition plate. A washing structure is further installed on one side of the acid base, a drying structure is further arranged on one side of the acid pickling container, metal oxide can be subjected to acid pickling, an acid solution can react with soluble impurities in the metal oxide, the impurities can be dissolved and removed, the purity and stability of the oxide are ensured, the oxide is washed and dried, and the acid pickling efficiency is improved. The soluble impurities of the metal oxide can be cleaned, so that the whole metal oxide is relatively clean, the uniformity of the material is ensured, and the screening machine is used for screening, so that the production of thermistors is ensured, and the stability of the production of the thermistors is improved.

Description

Technical Field

[0001] This utility model relates to the field of thermistor production technology, specifically to a material screening device for thermistor production. Background Technology

[0002] A thermistor is an electronic component whose resistance changes with temperature. Thermistors are widely used in temperature sensing, temperature control, and temperature compensation. During the production of thermistors, the selection of raw materials is crucial, as the quality of the raw materials directly affects the performance, stability, and lifespan of the thermistor. Thermistors are typically produced in large quantities, making it essential to ensure the consistency and repeatability of each product. Strict selection of raw materials can prevent inconsistencies in product performance caused by fluctuations in raw material quality.

[0003] The raw materials for thermistors are usually metal oxides (such as cobalt oxide, nickel oxide, iron oxide, etc.) or semiconductor materials. The properties of these materials determine the resistance-temperature characteristics of the thermistor. Before production, the required raw materials need to be prepared. These materials are usually provided in powder form. During the production of thermistors, since some metal oxides are prone to contain soluble impurities, they need to be removed first. Otherwise, the raw materials will be impure, affecting the material screening results and thus affecting the subsequent production of the thermistor. Utility Model Content

[0004] The purpose of this invention is to provide a material screening device for the production of thermistors, in order to solve the problem mentioned in the background art that some metal oxides are prone to contain soluble impurities, which need to be removed first, otherwise the raw materials will be impure, affecting the screening of materials and thus affecting the subsequent production of thermistors.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a material screening device for the production of thermistors, comprising a base and an acid pickling container installed on the upper end of the base. A partition plate is installed at the center of the interior of the acid pickling container, and acid pickling chambers and processing chambers are arranged on both the left and right sides of the partition plate. The acid pickling chambers store acid pickling solution, which can pickle metal oxides and remove impurities in conjunction with the processing chambers. A rinsing structure is also installed on one side of the base, which is used to rinse the surface of the acid-washed metal oxides. A drying structure is also provided on one side of the acid pickling container, which is used to dry the metal oxides, reduce the surface moisture of the metal oxides, and facilitate subsequent screening with a screening machine.

[0006] The pickling chamber includes stirring blades and a pump body mounted on the upper part of a partition plate. The pickling chamber stores pickling solution. The two ends of the pump body are connected to a suction pipe and a conduit, respectively. One end of the suction pipe is placed in the pickling chamber, and the other end of the conduit is placed in the processing chamber. A filter is installed in the processing chamber to filter metal oxides. The metal oxide material is placed in the pickling chamber, and the pickling solution is used to pickle the metal oxides. The stirring blades are used to stir the solution, and the pump body can draw the solution along with the metal oxides into the filter for filtration.

[0007] Preferably, a pipe is also installed on the outer wall of the pickling container, and the pipe communicates with the processing chamber.

[0008] Preferably, the flushing structure includes a water tank and a flushing pipe connected to the side wall of the water tank. A water pump is installed inside the water tank, and one end of the water pump is connected to the flushing pipe. A connecting pipe is also provided on the side wall of the water tank, which is connected to a water storage tank. Clean water can be injected into the water tank through the connecting pipe.

[0009] Preferably, the drying structure includes a drying chamber and a door rotatably connected to the side wall of the drying chamber. A heating element is installed at the top inside the drying chamber for heating. An electric guide rail is also installed inside the drying chamber for moving the filter left and right. A sealing plate is also slidably inserted on the drying chamber. The drying structure can be sealed by using the drying chamber and the sealing plate.

[0010] Preferably, the electric guide rail component includes an electric slide rail and a slider that slides on the electric slide rail. A fixing plate is installed on the upper end of the slider. The fixing plate is used to support the filter. Several drainage holes are opened on the surface of both the electric slide rail and the fixing plate. The drainage holes are used for drainage. Liquid can fall into the processing chamber through the drainage holes and be discharged through the drain pipe.

[0011] Preferably, a sealing layer for sealing is adhered to the outer wall of the sealing plate, and a blocking block is provided at the lower end of the sealing plate. The blocking block is adapted to the groove on the surface of the electric slide rail to achieve sealing.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. Through the set base, pickling container, partition plate, pickling chamber, processing chamber, rinsing structure and drying structure, metal oxides can be pickled. The acid solution can react with soluble impurities in the metal oxides, dissolve and remove these impurities, and ensure the purity and stability of the oxides. Rinsing and drying make the metal oxides relatively clean overall, ensuring the uniformity of the material. Screening is then carried out using a screening machine, thereby improving the stability of thermistor production.

[0014] 2. By setting up the sealing plate and blocking block, the grooves on the surface of the drying box and electric slide rail can be sealed, and the sealing layer can be used to seal it, so that heat is not easy to escape from the gaps. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0016] Figure 2 This is a three-dimensional structural diagram of the flushing structure of this utility model;

[0017] Figure 3 This is a three-dimensional structural diagram of the drying structure of this utility model;

[0018] Figure 4 For the present utility model Figure 3 Enlarged 3D structural diagram at point A.

[0019] In the diagram: 1. Base; 2. Pickling container; 21. Pipeline; 3. Divider plate; 4. Pickling chamber; 41. Stirring blades; 42. Pump body; 43. Suction pipe; 44. Conduit; 5. Processing chamber; 51. Filter; 6. Flushing structure; 61. Water tank; 62. Flushing pipe; 63. Connecting pipe; 7. Drying structure; 71. Drying box; 72. Electric guide rail; 721. Electric slide rail; 722. Slider; 723. Fixing plate; 724. Drain hole; 73. Box door; 74. Heating element; 75. Sealing plate; 751. Sealing layer; 752. Block. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1: Please refer to Figures 1-3A material screening device for the production of thermistors includes a base 1, an acid pickling container 2, a partition plate 3, an acid pickling chamber 4, a processing chamber 5, a rinsing structure 6, and a drying structure 7. The acid pickling container 2 is located at the upper end of the base 1. The partition plate 3 is placed at the center of the interior of the acid pickling container 2, dividing the space inside the acid pickling container 2 into the acid pickling chamber 4 and the processing chamber 5. The acid pickling chamber 4 stores an acid pickling solution, which can acid pickle metal oxides and, together with the processing chamber 5, remove impurities, thereby removing soluble impurities and facilitating subsequent screening of metal oxide materials. The rinsing structure 6 is located on one side of the base 1 and is used to rinse the surface of the acid-washed metal oxides to remove acidity. The drying structure 7 is located on one side of the acid pickling container 2 and is used to dry the metal oxides, reducing the surface moisture of the metal oxides and facilitating subsequent screening using a screening machine.

[0022] The pickling chamber 4 includes a stirring blade 41 and a pump body 42 installed on the upper end of the partition plate 3. The pickling chamber 4 stores pickling solution. The two ends of the pump body 42 are connected to a suction pipe 43 and a conduit 44, respectively. One end of the suction pipe 43 is placed in the pickling chamber 4, and one end of the conduit 44 is placed in the processing chamber 5. A filter 51 is installed in the processing chamber 5. The filter 51 is used to filter metal oxides. When the metal oxide material is put into the pickling chamber 4, the pickling solution is used to pickle the metal oxides, and the stirring blade 41 is used to stir it. At the same time, with the help of the pump body 42, the solution along with the metal oxides can be drawn into the filter 51 for filtration, so that the metal oxides remain in the filter 51.

[0023] A drain pipe 21 is also installed on the outer wall of the pickling container 2. The drain pipe 21 is connected to the processing chamber 5. A valve is installed on the drain pipe 21. When the valve is opened, the acid solution can be discharged through the drain pipe 21.

[0024] The rinsing structure 6 includes a water tank 61 and a rinsing pipe 62 connected to the side wall of the water tank 61. A water pump is installed inside the water tank 61, and one end of the water pump is connected to the rinsing pipe 62. A connecting pipe 63 is also provided on the side wall of the water tank 61. The connecting pipe 63 is connected to a water storage tank. Clean water can be injected into the water tank 61 through the connecting pipe 63, which can rinse the metal oxide multiple times to remove the acidic solution remaining on the surface of the metal oxide.

[0025] The drying structure 7 includes a drying chamber 71 and a door 73 rotatably connected to the side wall of the drying chamber 71. A heating element 74 is installed at the top inside the drying chamber 71 for heating. An electric guide rail 72 is also installed inside the drying chamber 71 for moving the filter 51 left and right. A sealing plate 75 is also slidably inserted on the drying chamber 71. The drying structure 7 can be sealed by the drying chamber 71 and the sealing plate 75, which can dry the metal oxide.

[0026] The electric guide rail component 72 includes an electric slide rail 721 and a slider 722 that slides on the electric slide rail 721. A fixing plate 723 is installed on the upper end of the slider 722. The fixing plate 723 is used to support the filter 51. Several drainage holes 724 are provided on the surfaces of the electric slide rail 721 and the fixing plate 723. The drainage holes 724 are used for drainage. (The electric guide rail component 72 is an electric linear slide rail structure that can provide linear movement. The electric guide rail component 72 is compatible with QRXQ brand electric linear slide rails and is existing technology.)

[0027] In this embodiment: an acid solution is injected into the pickling chamber 4, and the metal oxide material is poured into the acid solution. The mixture is stirred with the stirring rod 41. The acid solution reacts with soluble impurities in the metal oxide, dissolving and removing these impurities, ensuring the purity and stability of the oxide. After pickling for a period of time, the pump 42 is started to draw the solution along with the metal oxide into the filter 51 for filtration, leaving the metal oxide in the filter 51, reducing manual operation. Then, the metal oxide is rinsed multiple times by the rinsing structure 6 to remove the residual acid solution. Then, under the action of the electric guide rail 72, the filter 51 is automatically driven into the drying chamber 71 to dry the metal oxide and remove moisture. This completes the cleaning of soluble impurities in the metal oxide, which is beneficial for subsequent screening and helps to ensure the production of thermistors.

[0028] Example 2: This example is an improvement on Example 1. For details, please refer to [link / reference]. Figures 2-4 A sealing layer 751 for sealing is adhered to the outer wall of the sealing plate 75, and a block 752 is provided at the lower end of the sealing plate 75. The block 752 is adapted to the groove on the surface of the electric slide rail 721 to achieve sealing.

[0029] In this embodiment, the operator can pull out and insert the sealing plate 75. During the drying process, the sealing plate 75 and the blocking block 752 can seal the grooves of the drying box 71 and the electric slide rail 721, and the sealing layer 751 is used to seal the drying process.

[0030] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A material screening device for the production of thermistors, comprising a base (1) and an acid pickling container (2) mounted on the upper end of the base (1), characterized in that: A partition plate (3) is installed at the center of the pickling container (2). Pickling chambers (4) and processing chambers (5) are arranged on both the left and right sides of the partition plate (3). A rinsing structure (6) is also installed on one side of the base (1). A drying structure (7) is also provided on one side of the pickling container (2). The pickling chamber (4) includes a stirring blade (41) and a pump body (42) installed on the upper end of the partition plate (3). The pickling chamber (4) stores pickling solution. The two ends of the pump body (42) are connected to a suction pipe (43) and a conduit (44), respectively. One end of the suction pipe (43) is placed in the pickling chamber (4), and one end of the conduit (44) is placed in the processing chamber (5). A filter (51) is installed in the processing chamber (5). The filter (51) is used to filter metal oxides.

2. The material screening device for the production of thermistors according to claim 1, characterized in that: The pickling container (2) is also equipped with a pipe (21) on its outer wall, which is connected to the processing chamber (5).

3. The material screening device for the production of thermistors according to claim 1, characterized in that: The flushing structure (6) includes a water tank (61) and a flushing pipe (62) connected to the side wall of the water tank (61). A water pump is installed inside the water tank (61), and one end of the water pump is connected to the flushing pipe (62). A connecting pipe (63) is also provided on the side wall of the water tank (61).

4. The material screening device for the production of thermistors according to claim 1, characterized in that: The drying structure (7) includes a drying box (71) and a door (73) rotatably connected to the side wall of the drying box (71). A heating element (74) is installed at the top inside the drying box (71). An electric guide rail (72) is also installed inside the drying box (71). A sealing plate (75) is also slidably inserted on the drying box (71).

5. The material screening device for the production of thermistors according to claim 4, characterized in that: The electric guide rail component (72) includes an electric slide rail (721) and a slider (722) that slides on the electric slide rail (721). A fixing plate (723) is installed on the upper end of the slider (722). The fixing plate (723) is used to support the filter (51). Several drainage holes (724) are opened on the surface of both the electric slide rail (721) and the fixing plate (723).

6. The material screening device for the production of thermistors according to claim 4, characterized in that: A sealing layer (751) for sealing is adhered to the outer wall of the sealing plate (75), and a block (752) is provided at the lower end of the sealing plate (75).

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